Sorry guys to start another thread on electrics to garage but I have trawled through the existing threads and really just want to clarify a few things before going any further
Basically I had a sparky over to quote me for installing electrics to the garage and this was on the pretence I ran the cable and got the parts for him from a shopping list he supplied. I have now installed a run of approx 40Mtrs (about half underground and half clipped to wall) of 3 core 4mm SWA from outside the house where the mains comes in off the street to inside of the garage, I have a 40Amp MCB for the existing CU in the house and an IP65 rated CU for the garage with a 40Amp RCD, 16Amp MCB for a couple of sockets and 6Amp MCB for the lights.
Basically....
1) has the sparky quoted the correct parts for the job as now looking at the forums it seems that a 6mm or even 10mm would be the prefered option over 4mm??
2) Can you connect the SWA directly to the Garage CU with a gland (he didnt specify metal)??
3) Its a fairly new house with a standard electric box on the front wall with a plastic pipe running into it and the electric boards cable terminating inside. Guessing he was going to run the cable into this box which im now dubious about? Not entirely sure why but im now nervous that he knows what he's talking about (with the original cable size quoted). can he bring a new cable into this box to get to the house CU or is this for the electric board use only??
Any comments before I ring another sparky and waist a little more money would be usefull? Thanks
Basically I had a sparky over to quote me for installing electrics to the garage and this was on the pretence I ran the cable and got the parts for him from a shopping list he supplied. I have now installed a run of approx 40Mtrs (about half underground and half clipped to wall) of 3 core 4mm SWA from outside the house where the mains comes in off the street to inside of the garage, I have a 40Amp MCB for the existing CU in the house and an IP65 rated CU for the garage with a 40Amp RCD, 16Amp MCB for a couple of sockets and 6Amp MCB for the lights.
Basically....
1) has the sparky quoted the correct parts for the job as now looking at the forums it seems that a 6mm or even 10mm would be the prefered option over 4mm??
2) Can you connect the SWA directly to the Garage CU with a gland (he didnt specify metal)??
3) Its a fairly new house with a standard electric box on the front wall with a plastic pipe running into it and the electric boards cable terminating inside. Guessing he was going to run the cable into this box which im now dubious about? Not entirely sure why but im now nervous that he knows what he's talking about (with the original cable size quoted). can he bring a new cable into this box to get to the house CU or is this for the electric board use only??
Any comments before I ring another sparky and waist a little more money would be usefull? Thanks